First Trimester • Week 1 of 40

Week 1 of Pregnancy

Your baby is about the size of a not yet conceived

1
Weeks Pregnant
273
Days Until Due Date
1
1st Trimester

👶Your Baby This Week

Baby Size: Not yet conceived
Approximate size comparison for week 1
1

This week marks the start of your pregnancy, though conception hasnt occurred yet

2

Your body is preparing for ovulation and potential conception

3

The egg that may become your baby is maturing in your ovary

🤰Your Body This Week

Your menstrual period is ending or has just ended

Hormone levels are beginning their monthly cycle

Your body is preparing the uterine lining for potential implantation

No pregnancy symptoms yet as conception hasnt occurred

This Week's To-Do List

Start taking folic acid supplements (400-800 mcg daily)

Begin tracking your menstrual cycle if trying to conceive

Maintain a healthy diet rich in nutrients

Limit alcohol consumption and quit smoking if applicable

Schedule a preconception checkup with your healthcare provider

When to Call Your Doctor

Contact your healthcare provider immediately if you experience any of these symptoms:

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Contact your doctor if you have irregular periods when trying to conceive

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Discuss any medications youre taking and their pregnancy safety

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Report any concerning symptoms or health changes

Medical Disclaimer

The information provided for week 1 of pregnancy is for educational purposes only and should not replace professional medical advice. Every pregnancy is unique, and individual experiences may vary. Always consult with your healthcare provider for personalized medical guidance and to address any concerns about your pregnancy.